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authorBen Hutchings <bhutchings@solarflare.com>2012-02-28 18:44:13 +0000
committerBen Hutchings <bhutchings@solarflare.com>2012-03-06 18:14:14 +0000
commite7bed9c8838c09518c02ea1a2ee74569836065ea (patch)
treefcb52b937ed7fafb56bd466f75dcc7fac84f44c8 /drivers/net/ethernet/sfc/nic.c
parent61321d92fc3d89fea0a4deb83db4acb0a3dcda07 (diff)
sfc: Remove TX completions from adaptive IRQ scoring
RX and TX completions on the same event queue are generally not associated with the same flows. The inclusion of TX completions in the adaptive IRQ score is more of a source of noise rather than useful feedback. Therefore, do not include them in the score, and adjust the default threshold scores down. Signed-off-by: Ben Hutchings <bhutchings@solarflare.com>
Diffstat (limited to 'drivers/net/ethernet/sfc/nic.c')
-rw-r--r--drivers/net/ethernet/sfc/nic.c1
1 files changed, 0 insertions, 1 deletions
diff --git a/drivers/net/ethernet/sfc/nic.c b/drivers/net/ethernet/sfc/nic.c
index 2bf4283f05f..5da8af5e750 100644
--- a/drivers/net/ethernet/sfc/nic.c
+++ b/drivers/net/ethernet/sfc/nic.c
@@ -822,7 +822,6 @@ efx_handle_tx_event(struct efx_channel *channel, efx_qword_t *event)
channel, tx_ev_q_label % EFX_TXQ_TYPES);
tx_packets = ((tx_ev_desc_ptr - tx_queue->read_count) &
tx_queue->ptr_mask);
- channel->irq_mod_score += tx_packets;
efx_xmit_done(tx_queue, tx_ev_desc_ptr);
} else if (EFX_QWORD_FIELD(*event, FSF_AZ_TX_EV_WQ_FF_FULL)) {
/* Rewrite the FIFO write pointer */